Finding the Third Proportional to 404,851 and 870,997

Step by Step Solution

1. Step 1: Write the proportion equation
   404,851 : 870,997 = 870,997 : x
2. Step 2: Convert to fraction form
   404,851/870,997 = 870,997/x
3. Step 3: Cross multiply
   404,851x = 870,997 × 870,997
4. Step 4: Simplify right side
   404,851x = 758,635,774,009
5. Step 5: Solve for x
   x = 758,635,774,009/404,851
6. Step 6: Final answer
   x = 1,873,864.15